I am looking for any information concerning my ggrandmother, Caroline Matilda Martin, who married Joseph P. Horne in Cincinnati, Ohio, July 1839. She is a total mystery in my genealogical research.

She was married previously because she had a young son when she married my ggrandfather, Joseph Pearson Horne. He was an attorney and a Quaker (possibly a former Quaker) who moved to Cincinnati from Philadelphia. They had two sons who survived to adulthood, Joseph and Edward P. Horne, Both of these sons served in the Civil War in Ohio companies. Caroline M. Horne died in July 1889 in Cincinnati.

Two other clues:

From our family Bible: Robert L. Martin, son of Caroline M. Horne, died October 24, 1845, aged 15 years, 9 months, 20 days, with brain fever.

In an old letter, it states that Joseph P. Horne died very young. He was born about 1815 in Philadelphia.